Merge tag 'pull-aspeed-20220503' of https://github.com/legoater/qemu into staging

aspeed queue:

* New AST1030 SoC and eval board
* Accumulative mode support for HACE controller
* GPIO fix and unit

Merge tag 'pull-aspeed-20220503' of https://github.com/legoater/qemu into staging

aspeed queue:

* New AST1030 SoC and eval board
* Accumulative mode support for HACE controller
* GPIO fix and unit test
* Clock modeling adjustments for the AST2600
* Dummy eMMC Boot Controller model
* Change of AST2500 EVB and AST2600 EVB flash model (for quad IO)

# -----BEGIN PGP SIGNATURE-----
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# OJ10rBi6FDJuKGHJGIQywlFSYYjPb+DgNEWId2rugVVm4dR02Cn69amuL40OO9by
# /C7hO9gSvRTqSSdjFcdkbI2h+kx0354F2/gR2LFLBh1KUHulTJ4ErthrKBiuNPC8
# tsELzYVnxWVT+nc30Nmidg3uCW3/5zBlaj0qlL4aiFjKR5na6Wpz+oE/aNiNdyT3
# IBI+J5zvbtn/prNTWLW1TCuGdwj357LfYfkfkH8eqZWfX5vGq+5hVTc/m8EW5Cx8
# yV8JrbjX8uDI379skdl4imtedbKZhPLd7csM/zrorsJhBBwSoLA=
# =+hIh
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 02 May 2022 10:50:39 PM PDT
# gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1

* tag 'pull-aspeed-20220503' of https://github.com/legoater/qemu:
aspeed/hace: Support AST1030 HACE
hw/gpio/aspeed_gpio: Fix QOM pin property
tests/qtest: Add test for Aspeed HACE accumulative mode
aspeed/hace: Support AST2600 HACE
aspeed/hace: Support HMAC Key Buffer register.
hw/arm/aspeed: fix AST2500/AST2600 EVB fmc model
test/avocado/machine_aspeed.py: Add ast1030 test case
aspeed: Add an AST1030 eval board
aspeed/soc : Add AST1030 support
aspeed/scu: Add AST1030 support
aspeed/timer: Add AST1030 support
aspeed/wdt: Add AST1030 support
aspeed/wdt: Fix ast2500/ast2600 default reload value
aspeed/smc: Add AST1030 support
aspeed/adc: Add AST1030 support
aspeed: Add eMMC Boot Controller stub
aspeed: sbc: Correct default reset values
hw: aspeed_scu: Introduce clkin_25Mhz attribute
hw: aspeed_scu: Add AST2600 apb_freq and hpll calculation function

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

aspeed/timer: Add AST1030 support

ast1030 tmc(timer controller) is identical to ast2600 tmc.

Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Si

aspeed/timer: Add AST1030 support

ast1030 tmc(timer controller) is identical to ast2600 tmc.

Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Signed-off-by: Steven Lee <steven_lee@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220401083850.15266-6-jamin_lin@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

show more ...

aspeed/timer: Add AST1030 support

ast1030 tmc(timer controller) is identical to ast2600 tmc.

Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Si

aspeed/timer: Add AST1030 support

ast1030 tmc(timer controller) is identical to ast2600 tmc.

Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Signed-off-by: Steven Lee <steven_lee@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220401083850.15266-6-jamin_lin@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

show more ...

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

QOM queue, 2020-09-18

Fixes:
* Error value corrections (Markus Armbruster)
* Correct object_class_dynamic

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

QOM queue, 2020-09-18

Fixes:
* Error value corrections (Markus Armbruster)
* Correct object_class_dynamic_cast_assert() documentation (Eduardo Habkost)
* Ensure objects using QEMU_ALIGNED are properly aligned (Richard Henderson)

QOM cleanups (Eduardo Habkost):
* Rename some constants
* Simplify parameters of OBJECT_DECLARE* macros
* Additional DECLARE_*CHECKER* usage
* Additional OBJECT_DECLARE_TYPE usage
* Additional OBJECT_DECLARE_SIMPLE_TYPE usage

# gpg: Signature made Fri 18 Sep 2020 21:45:29 BST
# gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg: issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request:
Use OBJECT_DECLARE_SIMPLE_TYPE when possible
Use OBJECT_DECLARE_TYPE when possible
qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros
qom: Remove ParentClassType argument from OBJECT_DECLARE_SIMPLE_TYPE
scripts/codeconverter: Update to latest version
target/s390x: Set instance_align on S390CPU TypeInfo
target/riscv: Set instance_align on RISCVCPU TypeInfo
target/ppc: Set instance_align on PowerPCCPU TypeInfo
target/arm: Set instance_align on CPUARM TypeInfo
qom: Allow objects to be allocated with increased alignment
qom: Correct error values in two contracts
qom: Clean up object_property_get_enum()'s error value
qom: Correct object_class_dynamic_cast_assert() documentation
sifive: Use DECLARE_*CHECKER* macros
sifive: Move QOM typedefs and add missing includes
sifive_u: Rename memmap enum constants
sifive_e: Rename memmap enum constants

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Use OBJECT_DECLARE_TYPE when possible

This converts existing DECLARE_OBJ_CHECKERS usage to
OBJECT_DECLARE_TYPE when possible.

$ ./scripts/codeconverter/converter.py -i \
--pattern=AddObjectDecl

Use OBJECT_DECLARE_TYPE when possible

This converts existing DECLARE_OBJ_CHECKERS usage to
OBJECT_DECLARE_TYPE when possible.

$ ./scripts/codeconverter/converter.py -i \
--pattern=AddObjectDeclareType $(git grep -l '' -- '*.[ch]')

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Paul Durrant <paul@xen.org>
Message-Id: <20200916182519.415636-5-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

QOM boilerplate cleanup

Documentation build fix:
* memory: Remove kernel-doc comment marker (Eduardo Habk

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

QOM boilerplate cleanup

Documentation build fix:
* memory: Remove kernel-doc comment marker (Eduardo Habkost)

QOM cleanups:
* Rename QOM macros for consistency between
TYPE_* and type checking constants (Eduardo Habkost)

QOM new macros:
* OBJECT_DECLARE_* and OBJECT_DEFINE_* macros (Daniel P. Berrangé)
* DECLARE_*_CHECKER macros (Eduardo Habkost)

Automated QOM boilerplate changes:
* Automated changes to use DECLARE_*_CHECKER (Eduardo Habkost
* Automated changes to use OBJECT_DECLARE* (Eduardo Habkost)

# gpg: Signature made Thu 10 Sep 2020 19:17:49 BST
# gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg: issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (33 commits)
virtio-vga: Use typedef name for instance_size
vhost-user-vga: Use typedef name for instance_size
xilinx_axienet: Use typedef name for instance_size
lpc_ich9: Use typedef name for instance_size
omap_intc: Use typedef name for instance_size
xilinx_axidma: Use typedef name for instance_size
tusb6010: Rename TUSB to TUSB6010
pc87312: Rename TYPE_PC87312_SUPERIO to TYPE_PC87312
vfio: Rename PCI_VFIO to VFIO_PCI
usb: Rename USB_SERIAL_DEV to USB_SERIAL
sabre: Rename SABRE_DEVICE to SABRE
rs6000_mc: Rename RS6000MC_DEVICE to RS6000MC
filter-rewriter: Rename FILTER_COLO_REWRITER to FILTER_REWRITER
esp: Rename ESP_STATE to ESP
ahci: Rename ICH_AHCI to ICH9_AHCI
vmgenid: Rename VMGENID_DEVICE to TYPE_VMGENID
vfio: Rename VFIO_AP_DEVICE_TYPE to TYPE_VFIO_AP_DEVICE
dev-smartcard-reader: Rename CCID_DEV_NAME to TYPE_USB_CCID_DEV
ap-device: Rename AP_DEVICE_TYPE to TYPE_AP_DEVICE
gpex: Fix type checking function name
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Use DECLARE_*CHECKER* macros

Generated using:

$ ./scripts/codeconverter/converter.py -i \
--pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]')

Reviewed-by: Daniel P. Berrangé <berrange@redha

Use DECLARE_*CHECKER* macros

Generated using:

$ ./scripts/codeconverter/converter.py -i \
--pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]')

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-12-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-13-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-14-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

show more ...

Move QOM typedefs and add missing includes

Some typedefs and macros are defined after the type check macros.
This makes it difficult to automatically replace their
definitions with OBJECT_DECLARE_TY

Move QOM typedefs and add missing includes

Some typedefs and macros are defined after the type check macros.
This makes it difficult to automatically replace their
definitions with OBJECT_DECLARE_TYPE.

Patch generated using:

$ ./scripts/codeconverter/converter.py -i \
--pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]')

which will split "typdef struct { ... } TypedefName"
declarations.

Followed by:

$ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \
$(git grep -l '' -- '*.[ch]')

which will:
- move the typedefs and #defines above the type check macros
- add missing #include "qom/object.h" lines if necessary

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-9-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-10-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-11-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue + QOM fixes and cleanups

Bug fix:
* numa: hmat: fix cache size check (Igor Mammedov)

QOM f

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue + QOM fixes and cleanups

Bug fix:
* numa: hmat: fix cache size check (Igor Mammedov)

QOM fixes and cleanups:
* Move QOM macros and typedefs to header files
* Use TYPE_* constants on TypeInfo structs
* Rename QOM type checking macros for consistency
* Rename enum values and typedefs that conflict with QOM
type checking amcros
* Fix typos on QOM type checking macros
* Delete unused QOM type checking macros that use
non-existing typedefs
* hvf: Add missing include
* xen-legacy-backend: Add missing typedef XenLegacyDevice

# gpg: Signature made Thu 27 Aug 2020 20:20:05 BST
# gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg: issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (53 commits)
dc390: Use TYPE_DC390_DEVICE constant
ppce500: Use TYPE_PPC_E500_PCI_BRIDGE constant
tosa: Use TYPE_TOSA_MISC_GPIO constant
xlnx-zcu102: Use TYPE_ZCU102_MACHINE constant
sclpconsole: Use TYPE_* constants
amd_iommu: Use TYPE_AMD_IOMMU_PCI constant
nios2_iic: Use TYPE_ALTERA_IIC constant
etsec: Use TYPE_ETSEC_COMMON constant
migration: Rename class type checking macros
swim: Rename struct SWIM to Swim
s390-virtio-ccw: Rename S390_MACHINE_CLASS macro
nubus: Rename class type checking macros
vfio/pci: Move QOM macros to header
kvm: Move QOM macros to kvm.h
mptsas: Move QOM macros to header
pxa2xx: Move QOM macros to header
rocker: Move QOM macros to header
auxbus: Move QOM macros to header
piix: Move QOM macros to header
virtio-serial-bus: Move QOM macros to header
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

aspeed_timer: Fix ASPEED_TIMER macro definition

The macro definition had an extra semicolon. This was never
noticed because the macro was only being used where it didn't
make a difference.

Reviewe

aspeed_timer: Fix ASPEED_TIMER macro definition

The macro definition had an extra semicolon. This was never
noticed because the macro was only being used where it didn't
make a difference.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Tested-By: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200825192110.3528606-11-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20191015' into staging

target-arm queue:
* Add Aspeed AST2600 SoC support (but no new board model yet)
* aspeed/wdt: Check corre

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20191015' into staging

target-arm queue:
* Add Aspeed AST2600 SoC support (but no new board model yet)
* aspeed/wdt: Check correct register for clock source
* bcm2835: code cleanups, better logging, trace events
* implement v2.0 of the Arm semihosting specification
* provide new 'transaction-based' ptimer API and use it
for the Arm devices that use ptimers
* ARM: KVM: support more than 256 CPUs

# gpg: Signature made Tue 15 Oct 2019 18:09:42 BST
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20191015: (67 commits)
hw/misc/bcm2835_mbox: Add trace events
hw/arm/bcm2835: Add various unimplemented peripherals
hw/arm/bcm2835: Rename some definitions
hw/arm/bcm2835_peripherals: Name various address spaces
hw/arm/bcm2835_peripherals: Improve logging
hw/arm/raspi: Use the IEC binary prefix definitions
aspeed/soc: Add ASPEED Video stub
aspeed: add support for the Aspeed MII controller of the AST2600
aspeed: Parameterise number of MACs
m25p80: Add support for w25q512jv
aspeed/soc: Add AST2600 support
aspeed: Introduce an object class per SoC
aspeed/i2c: Add AST2600 support
aspeed/i2c: Introduce an object class per SoC
hw/gpio: Add in AST2600 specific implementation
aspeed/smc: Add AST2600 support
aspeed/smc: Introduce segment operations
hw: wdt_aspeed: Add AST2600 support
watchdog/aspeed: Introduce an object class per SoC
aspeed/sdmc: Add AST2600 support
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

aspeed/timer: Add support for IRQ status register on the AST2600

The AST2600 timer replaces control register 2 with a interrupt status
register. It is set by hardware when an IRQ occurs and cleared

aspeed/timer: Add support for IRQ status register on the AST2600

The AST2600 timer replaces control register 2 with a interrupt status
register. It is set by hardware when an IRQ occurs and cleared by
software.

Modify the vmstate version to take into account the new fields.

Based on previous work from Joel Stanley.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 20190925143248.10000-8-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

aspeed/timer: Add AST2600 support

The AST2600 timer has a third control register that is used to
implement a set-to-clear feature for the main control register.

On the AST2600, it is not configurab

aspeed/timer: Add AST2600 support

The AST2600 timer has a third control register that is used to
implement a set-to-clear feature for the main control register.

On the AST2600, it is not configurable via 0x38 (control register 3)
as it is on the AST2500.

Based on previous work from Joel Stanley.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 20190925143248.10000-7-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

aspeed/timer: Add support for control register 3

The AST2500 timer has a third control register that is used to
implement a set-to-clear feature for the main control register.

This models the behav

aspeed/timer: Add support for control register 3

The AST2500 timer has a third control register that is used to
implement a set-to-clear feature for the main control register.

This models the behaviour expected by the AST2500 while maintaining
the same behaviour for the AST2400.

The vmstate version is not increased yet because the structure is
modified again in the following patches.

Based on previous work from Joel Stanley.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 20190925143248.10000-6-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

aspeed/timer: Introduce an object class per SoC

The most important changes will be on the register range 0x34 - 0x3C
memops. Introduce class read/write operations to handle the
differences between S

aspeed/timer: Introduce an object class per SoC

The most important changes will be on the register range 0x34 - 0x3C
memops. Introduce class read/write operations to handle the
differences between SoCs.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 20190925143248.10000-5-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

aspeed/timer: Add support for IRQ status register on the AST2600

The AST2600 timer replaces control register 2 with a interrupt status
register. It is set by hardware when an IRQ occurs and cleared

aspeed/timer: Add support for IRQ status register on the AST2600

The AST2600 timer replaces control register 2 with a interrupt status
register. It is set by hardware when an IRQ occurs and cleared by
software.

Based on previous work from Joel Stanley.

Signed-off-by: Cédric Le Goater <clg@kaod.org>

show more ...

aspeed/timer: Add support for AST2600

The AST2600 timer has a third control register that is used to
implement a set-to-clear feature for the main control register.

On the AST2600, it is not config

aspeed/timer: Add support for AST2600

The AST2600 timer has a third control register that is used to
implement a set-to-clear feature for the main control register.

On the AST2600, it is not configurable via 0x38 (control register 3)
as it is on the AST2500.

Based on previous work from Joel Stanley.

Signed-off-by: Cédric Le Goater <clg@kaod.org>

show more ...

aspeed/timer: Add support for control register 3

The AST2500 timer has a third control register that is used to
implement a set-to-clear feature for the main control register.

This models the behav

aspeed/timer: Add support for control register 3

The AST2500 timer has a third control register that is used to
implement a set-to-clear feature for the main control register.

This models the behaviour expected by the AST2500 while maintaining
the same behaviour for the AST2400.

Based on previous work from Joel Stanley.

Signed-off-by: Cédric Le Goater <clg@kaod.org>

show more ...

aspeed/timer: Introduce an object class per SoC

It prepares ground for register differences between SoCs.

Signed-off-by: Cédric Le Goater <clg@kaod.org>

aspeed/timer: Provide back-pressure information for short periods

First up: This is not the way the hardware behaves.

However, it helps resolve real-world problems with short periods being
used und

aspeed/timer: Provide back-pressure information for short periods

First up: This is not the way the hardware behaves.

However, it helps resolve real-world problems with short periods being
used under Linux. Commit 4451d3f59f2a ("clocksource/drivers/fttmr010:
Fix set_next_event handler") in Linux fixed the timer driver to
correctly schedule the next event for the Aspeed controller, and in
combination with 5daa8212c08e ("ARM: dts: aspeed: Describe random number
device") Linux will now set a timer with a period as low as 1us.

Configuring a qemu timer with such a short period results in spending
time handling the interrupt in the model rather than executing guest
code, leading to noticeable "sticky" behaviour in the guest.

The behaviour of Linux is correct with respect to the hardware, so we
need to improve our handling under emulation. The approach chosen is to
provide back-pressure information by calculating an acceptable minimum
number of ticks to be set on the model. Under Linux an additional read
is added in the timer configuration path to detect back-pressure, which
will never occur on hardware. However if back-pressure is observed, the
driver alerts the clock event subsystem, which then performs its own
next event dilation via a config option - d1748302f70b ("clockevents:
Make minimum delay adjustments configurable")

A minimum period of 5us was experimentally determined on a Lenovo
T480s, which I've increased to 20us for "safety".

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

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Merge branch 'aspeed-4.0' of github.com:legoater/qemu

* 'aspeed-4.0' of github.com:legoater/qemu:
hw/arm/aspeed: Add RTC to SoC
hw: timer: Add ASPEED RTC device
aspeed: add a LPC controller to

Merge branch 'aspeed-4.0' of github.com:legoater/qemu

* 'aspeed-4.0' of github.com:legoater/qemu:
hw/arm/aspeed: Add RTC to SoC
hw: timer: Add ASPEED RTC device
aspeed: add a LPC controller to the SoC
hw/misc: add a basic Aspeed LPC controller model
aspeed: add a PWM controller to the SoC
hw/misc: Add basic Aspeed PWM model
aspeed: add the UART1 serial
aspeed: add a GPIO controller to the SoC
hw/gpio: Add basic Aspeed GPIO model
ast2400: add a iBT device model
aspeed: add the VUART serial
aspeed: Link SCU to the watchdog
hw/arm: Integrate ADC model into Aspeed SoC
hw/adc: Add basic Aspeed ADC model
memory: Support unaligned accesses on aligned-only models
aspeed/i2c: add support for DMA transfers
aspeed/smc: Calculate checksum on normal DMA
aspeed/smc: inject errors in DMA checksum
aspeed/smc: add DMA calibration settings
aspeed/smc: add support for DMAs
aspeed/smc: add a 'sdram_base' and 'max-ram-size' properties
aspeed/smc: move up the SDRAM Memory controller realization
hw/arm/aspeed: add a 'execute-in-place' property to boot directly from CE0
aspeed/timer: Use signed muldiv for timer resets
aspeed/timer: Provide back-pressure information for short periods
aspeed/timer: Fix match calculations
aspeed/timer: Status register contains reload for stopped timer
aspeed/timer: Fix behaviour running Linux

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aspeed/timer: Provide back-pressure information for short periods

First up: This is not the way the hardware behaves.

However, it helps resolve real-world problems with short periods being
used und

aspeed/timer: Provide back-pressure information for short periods

First up: This is not the way the hardware behaves.

However, it helps resolve real-world problems with short periods being
used under Linux. Commit 4451d3f59f2a ("clocksource/drivers/fttmr010:
Fix set_next_event handler") in Linux fixed the timer driver to
correctly schedule the next event for the Aspeed controller, and in
combination with 5daa8212c08e ("ARM: dts: aspeed: Describe random number
device") Linux will now set a timer with a period as low as 1us.

Configuring a qemu timer with such a short period results in spending
time handling the interrupt in the model rather than executing guest
code, leading to noticeable "sticky" behaviour in the guest.

The behaviour of Linux is correct with respect to the hardware, so we
need to improve our handling under emulation. The approach chosen is to
provide back-pressure information by calculating an acceptable minimum
number of ticks to be set on the model. Under Linux an additional read
is added in the timer configuration path to detect back-pressure, which
will never occur on hardware. However if back-pressure is observed, the
driver alerts the clock event subsystem, which then performs its own
next event dilation via a config option - d1748302f70b ("clockevents:
Make minimum delay adjustments configurable")

A minimum period of 5us was experimentally determined on a Lenovo
T480s, which I've increased to 20us for "safety".

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

show more ...

aspeed/timer: Provide back-pressure information for short periods

First up: This is not the way the hardware behaves.

However, it helps resolve real-world problems with short periods being
used und

aspeed/timer: Provide back-pressure information for short periods

First up: This is not the way the hardware behaves.

However, it helps resolve real-world problems with short periods being
used under Linux. Commit 4451d3f59f2a ("clocksource/drivers/fttmr010:
Fix set_next_event handler") in Linux fixed the timer driver to
correctly schedule the next event for the Aspeed controller, and in
combination with 5daa8212c08e ("ARM: dts: aspeed: Describe random number
device") Linux will now set a timer with a period as low as 1us.

Configuring a qemu timer with such a short period results in spending
time handling the interrupt in the model rather than executing guest
code, leading to noticeable "sticky" behaviour in the guest.

The behaviour of Linux is correct with respect to the hardware, so we
need to improve our handling under emulation. The approach chosen is to
provide back-pressure information by calculating an acceptable minimum
number of ticks to be set on the model. Under Linux an additional read
is added in the timer configuration path to detect back-pressure, which
will never occur on hardware. However if back-pressure is observed, the
driver alerts the clock event subsystem, which then performs its own
next event dilation via a config option - d1748302f70b ("clockevents:
Make minimum delay adjustments configurable")

A minimum period of 5us was experimentally determined on a Lenovo
T480s, which I've increased to 20us for "safety".

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

show more ...

timer: aspeed: Provide back-pressure information for short periods

First up: This is not the way the hardware behaves.

However, it helps resolve real-world problems with short periods being
used un

timer: aspeed: Provide back-pressure information for short periods

First up: This is not the way the hardware behaves.

However, it helps resolve real-world problems with short periods being
used under Linux. Commit 4451d3f59f2a ("clocksource/drivers/fttmr010:
Fix set_next_event handler") in Linux fixed the timer driver to
correctly schedule the next event for the Aspeed controller, and in
combination with 5daa8212c08e ("ARM: dts: aspeed: Describe random number
device") Linux will now set a timer with a period as low as 1us.

Configuring a qemu timer with such a short period results in spending
time handling the interrupt in the model rather than executing guest
code, leading to noticeable "sticky" behaviour in the guest.

The behaviour of Linux is correct with respect to the hardware, so we
need to improve our handling under emulation. The approach chosen is to
provide back-pressure information by calculating an acceptable minimum
number of ticks to be set on the model. Under Linux an additional read
is added in the timer configuration path to detect back-pressure, which
will never occur on hardware. However if back-pressure is observed, the
driver alerts the clock event subsystem, which then performs its own
next event dilation via a config option - d1748302f70b ("clockevents:
Make minimum delay adjustments configurable")

A minimum period of 5us was experimentally determined on a Lenovo
T480s, which I've increased to 20us for "safety".

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

show more ...

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180925-1' into staging

target-arm queue:
* target/arm: Fix cpu_get_tb_cpu_state() for non-SVE CPUs
* hw/arm/exynos4210: fix Ex

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180925-1' into staging

target-arm queue:
* target/arm: Fix cpu_get_tb_cpu_state() for non-SVE CPUs
* hw/arm/exynos4210: fix Exynos4210 UART support
* hw/arm/virt-acpi-build: Add a check for memory-less NUMA nodes
* arm: Add BBC micro:bit machine
* aspeed/i2c: Fix interrupt handling bugs
* hw/arm/smmu-common: Fix the name of the iommu memory regions
* hw/arm/smmuv3: fix eventq recording and IRQ triggerring
* hw/intc/arm_gic: Document QEMU interface
* hw/intc/arm_gic: Drop GIC_BASE_IRQ macro
* hw/net/pcnet-pci: Convert away from old_mmio accessors
* hw/timer/cmsdk-apb-dualtimer: Add missing 'break' statements
* aspeed/timer: fix compile breakage with clang 3.4.2
* hw/arm/aspeed: change the FMC flash model of the AST2500 evb
* hw/arm/aspeed: Minor code cleanups
* target/arm: Start AArch32 CPUs with EL2 but not EL3 in Hyp mode

# gpg: Signature made Tue 25 Sep 2018 15:23:11 BST
# gpg: using RSA key 3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20180925-1: (21 commits)
target/arm: Start AArch32 CPUs with EL2 but not EL3 in Hyp mode
aspeed/smc: fix some alignment issues
hw/arm/aspeed: Add an Aspeed machine class
hw/arm/aspeed: change the FMC flash model of the AST2500 evb
aspeed/timer: fix compile breakage with clang 3.4.2
hw/timer/cmsdk-apb-dualtimer: Add missing 'break' statements
hw/net/pcnet-pci: Unify pcnet_ioport_read/write and pcnet_mmio_read/write
hw/net/pcnet-pci: Convert away from old_mmio accessors
hw/intc/arm_gic: Drop GIC_BASE_IRQ macro
hw/intc/arm_gic: Document QEMU interface
hw/arm/smmuv3: fix eventq recording and IRQ triggerring
hw/arm/smmu-common: Fix the name of the iommu memory regions
aspeed/i2c: Fix receive done interrupt handling
aspeed/i2c: Handle receive command in separate function
aspeed/i2c: interrupts should be cleared by software only
arm: Add BBC micro:bit machine
arm: Add Nordic Semiconductor nRF51 SoC
MAINTAINERS: Add NRF51 entry
hw/arm/virt-acpi-build: Add a check for memory-less NUMA nodes
hw/arm/exynos4210: fix Exynos4210 UART support
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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